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Main body
- Type locality: Mount Tashiro, Akita prefecture
- Shield volcano
- Volcanic rocks
- Pleistocene
- Lithofacies: Hypersthene series
- Lithofacies: Quartz-bearing augite hypersthene hornblend andesite
- Lithofacies: Lava
- Lithofacies (Minor): Agglomerate
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Tashiro, Akita pref.
- Distribution: Yunosawa, Tashiro, Kuzowara, Odate city, Akita pref.
- Sumi et al. (1962) Dairakozan, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 51p. (in Japanese with English abstract 7p.)